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Journal : JURNAL AIR INDONESIA

PENGURANGAN CHROM (Cr) DALAM LIMBAH CAIR INDUSTRI KULIT PADA PROSES TANNERY MENGGUNAKAN SENYAWA ALKALI Ca(OH)2, NaOH DAN NaHCO3 (STUDI KASUS PT. TRIMULYO KENCANA MAS SEMARANG) Asmadi, Asmadi; S, Endro; Oktiawan, W.
Jurnal Air Indonesia Vol. 5 No. 1 (2009): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.706 KB) | DOI: 10.29122/jai.v5i1.2431

Abstract

AbstractOne of the industries that use hazardous and toxic (B3) on the production process is leather tannery industry, with a compound chromium (Cr). Chromium in the compound, including heavy metals that have a known toxicity of high power. Alkali compound is Ca(OH)2, NaOH,and NaHCO3 the chemicals that can be used for processing liquid waste leather tannery industry that contains chromium, which works to raise the pH and precipitate chromium solution so produced chrome hidroksida in the form of chromium (Cr(OH)3). Results of research it was found that the pH optimum for alkali compound at each pH condition 8, the separation efficiency of 99.28% chromium compound using alkali Ca (OH) 2 and NaOH, while the use of 98.50% NaHCO3. Alkali compound which most effective review of technical aspects to a decrease in the concentration of chromium in leather tannery wastewater is NaOH, because with a small dose is able to separate the chromium in the wastewater with a high efficiency (99.28%), while the most economical and is recommended for applications is in the Ca(OH)2.  Key words : Ca(OH)2, Cr2O3, separation efficiency, hidroksida chromium (Cr(OH)3),  NaHCO3, NaOH,  pH optimum, alkali compound.
PENGURANGAN CHROM (Cr) DALAM LIMBAH CAIR INDUSTRI KULIT PADA PROSES TANNERY MENGGUNAKAN SENYAWA ALKALI Ca(OH)2, NaOH DAN NaHCO3 (STUDI KASUS PT. TRIMULYO KENCANA MAS SEMARANG) Asmadi, Asmadi; S, Endro; Oktiawan, W.
Jurnal Air Indonesia Vol. 5 No. 1 (2009): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jai.v5i1.2431

Abstract

AbstractOne of the industries that use hazardous and toxic (B3) on the production process is leather tannery industry, with a compound chromium (Cr). Chromium in the compound, including heavy metals that have a known toxicity of high power. Alkali compound is Ca(OH)2, NaOH,and NaHCO3 the chemicals that can be used for processing liquid waste leather tannery industry that contains chromium, which works to raise the pH and precipitate chromium solution so produced chrome hidroksida in the form of chromium (Cr(OH)3). Results of research it was found that the pH optimum for alkali compound at each pH condition 8, the separation efficiency of 99.28% chromium compound using alkali Ca (OH) 2 and NaOH, while the use of 98.50% NaHCO3. Alkali compound which most effective review of technical aspects to a decrease in the concentration of chromium in leather tannery wastewater is NaOH, because with a small dose is able to separate the chromium in the wastewater with a high efficiency (99.28%), while the most economical and is recommended for applications is in the Ca(OH)2.  Key words : Ca(OH)2, Cr2O3, separation efficiency, hidroksida chromium (Cr(OH)3),  NaHCO3, NaOH,  pH optimum, alkali compound.
Co-Authors Adha, Aisyah Nur Adhitiyawarman, Adhitiyawarman Adhiyah, Adhiyah Adib, Moh Afrini, Novia Afrista, Kartika Ahmad Muhtadi Akbar, Aji Ali Akhmadi, Zainal Albasit, Ghofur Mualif Amanda, Sherly Andriwidayan, Wahyu Anggraini, Sri Arlina Arlina, Arlina Asshidqi, Hasbi Budiman, Arie Yudha Cahyo, Sigit Dwi Chindy Anjeli Chitra, Fara Citra Pangestu Desi Yusnita Mailinda dinata, reski dinata reski Elly Trisnawati Endro S Erma Roza Evi Gusmayanti Faridah, Farah Farlianti, Sari Fatimah, Ipat Fikri, Zakiyudin Fitriansyah, Muhammad Hajimi, Hajimi Hariyani, Susi Hasan Almutahar Hasnah Faizah AR Helyanto, Helyanto Ida Ayu Putu Sri Widnyani idiris, nurianda Iffananda, La Resha Indah Budiastutik Irene anggraini Jajat sudrajat Jannah, Nurjatul Karimah, Arridhatul khairi, reski dinata Listiani, Endang Indri Maila, Yunis Marpitasari, Sherly Masobirin, Masobirin Masrul Mudinillah, Adam Nasip, Mohammad Naziva, Aviq Nernawani, Nernawani Nuralim, Ihsan Nurhidayat, Bella Rahma Okta Hardiani, Annisa Nurul Oktaviani, Cherlya Paulina Paulina Pinawati, Putri Pradana, Tedy Dian Priyogo, Prengki Pujiarini, Erna Hudianti Purnama, Ihkwan Arief Rajela, Amelia ramadani, anisa Ramdhan Witarsa Randy Setiawan, Randy Ratih Wijayanti, Ratih Reski, Indah Anjar Risa, Tia Tio Rizal Rizal Rizal, Rio Abu Rochmawati, Rochmawati Rusmianingsih, Nining Ryanti, Eva Sakdiah, Nur Salbiah Kastari Salsabila, Unik Hanifah sapta, sapta Sari, Ayu Putri Kusmia Sari, Dara Puspita Sarpawi, Sarpawi Sasongko, Hartanto Wahyu Satria, Jaka Sa’diyah, Shella Ainun Sikwan, Agus Sismiarty, Nuniek Subha, Habibah Aurora Suharno Suharno Sukamto Sukamto Sunarsieh, Sunarsieh Susilawati, Susilawati Syahrani, Deny Syarifah Elsa Pitri Syukriyansyah, Syukriyansyah Tari, Najwa Rahmanda Taufik Anwar Utomo, Satrio W. Oktiawan Yulia Yulia Yuranti, Lisa zulfa, Ira Zulkarnaen Zulkarnaen